
A feeling of “pins and needles” in the hands can lead to an ephemeral disturbance or even be more serious. Sometimes the feeling of tingling is caused by temporary pressure on a nerve, while prolonged numbness may indicate some illness.
Improper Sleeping Position
Numbness in the hand in the morning is often associated with sleeping in the wrong position, as with all body weight lying down on an arm or bending the wrist sharply at sleep, causing a nerve compression (such as the ulnar or median nerve), which may cause decreased blood circulation. It also generates that well-known “pins and needles” sensation, a temporary signal from the body indicating that a nerve has been irritated.
Repetitive Motions

Frequent and repetitive hand movements may irritate and slowly compress some nerves, leading to prolonged tingling or numbness. An example is carpal tunnel syndrome, where persistent pressure on the median nerve passing through the confined carpal tunnel within the wrist gives a lot of pain.
Vitamin B12 Deficiency
Sufficient vitamin B12 is essential to keep the nerves working well, so low levels are detected by tingling in the hands and feet at the early stages of nerve impairment. This deficiency can also lead to muscle weakness, chronic fatigue, and balance problems, hence the need for early detection.
Diabetes and Peripheral Neuropathy
When blood sugar levels are raised constantly, the degrees of the nervous system get disturbed, and the peripheral nerves in far-off parts of the body get damaged. The damage is called diabetic neuropathy.
Neck or Spinal Issues

Tinglings can radiate from the arms down to the hands – however, the problem might be in between your spine. Conditions putting pressure against upper end nerves may include herniated discs or cervical spondylosis (degenerative changes to the neck vertebrae). This causes phenomena known as radiculopathy.
Autoimmune Disorders
When the immune system cells of one’s body attack the nervous system of the body, the point is usually reached at which sorrows are referred to as sensory annoyances. Such autoimmune conditions are generally involved with derangements of normal functions related to nerves, like rheumatoid arthritis (RA) and Guillain-Barré syndrome (GBS).
Poor Circulation
A tingling sensation in the hands often points to a circulation problem rather than a nerve one. Conditions that restrict blood flow to the periphery can often cause such varied sensory effects, with particular causative agents.
Nerve Compression by Cysts or Tumors
Bumps in your hands may not only be a matter of cosmetic concern. Ganglion cysts are fluid-filled, non-cancerous sacs wthatoften occur near joints or tetendons and mayometimes compress nearby nerves.
Infections
Since infections are so well responsive to nerve damage in the above way, both viral and bacterial infections have a strong tendency to bring about neurological symptoms with any illness that, in some way, fails to make an individual bilious.







